Symbiotic stars on Asiago archive plates. II

Abstract

The Asiago photographic archive has been searched for plates containing the symbiotic stars Hen 2-468, QW Sge, LT Del, V407 Cyg, K 3-9, V335 Vul, FG Ser and Draco C-1. A total of 635 plates imaging the program stars have been found and the brightness estimated using the Henden & Munari (2000) UBVRI photometric sequences. These historical data have allowed for the first time the determination of the orbital periods of Hen 2-468 (774 days) and QW Sge (390.5 days), a significant improvement in the orbital period of LT Del (465.6 days) and for V407 Cyg an evaluation of the Mira's pulsation period and complex lightcurve shape in the red (R and I bands). Some previously unknown outbursts have been discovered too. (Paper I: Munari et al. 2001, A&A 370, 503)

A&A, in press

References in corpus (4)

• The mysterious eruption of V838 Mon
• A multi-epoch spectrophotometric atlas of symbiotic stars
• UBVRI photometric comparison sequences for symbiotic stars. II
• Symbiotic stars on Asiago archive plates. I

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• The 2010 nova outburst of the symbiotic Mira V407 Cyg
• Historical light curve and search for previous outbursts of Nova KT Eridani (2009)
• The GALAH Survey and Symbiotic Stars. I. Discovery and follow-up of 33 candidate accreting-only systems
• Lithium in the Symbiotic Mira V407 Cyg
• J-PLUS: Tools to identify compact planetary nebulae in the Javalambre and southern photometric local universe surveys
• Chemical abundance analysis of symbiotic giants. Metallicity and CNO abundance patterns in 14 northern S-type systems